Finding the Third Proportional to 1,390,842 and 2,981,295

Step by Step Solution

1. Step 1: Write the proportion equation
   1,390,842 : 2,981,295 = 2,981,295 : x
2. Step 2: Convert to fraction form
   1,390,842/2,981,295 = 2,981,295/x
3. Step 3: Cross multiply
   1,390,842x = 2,981,295 × 2,981,295
4. Step 4: Simplify right side
   1,390,842x = 8,888,119,877,025
5. Step 5: Solve for x
   x = 8,888,119,877,025/1,390,842
6. Step 6: Final answer
   x = 6,390,459.79